package com.atguigu.lease.web.app.service.impl;


import com.aliyun.dysmsapi20170525.Client;
import com.aliyun.dysmsapi20170525.models.SendSmsRequest;
import com.atguigu.lease.common.exceptions.LeaseException;
import com.atguigu.lease.common.redis.RedisConstant;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.UserInfo;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.app.service.LoginService;
import com.atguigu.lease.web.app.service.UserInfoService;
import com.atguigu.lease.web.app.vo.user.LoginVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import kotlin.jvm.internal.Lambda;
import org.checkerframework.checker.units.qual.A;
import org.checkerframework.checker.units.qual.C;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.Random;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
        private Client client;
    @Autowired
    private RedisTemplate redisTemplate;
    @Autowired
    private UserInfoService userInfoService;

    @Override
    public void sendCode(String phone) throws Exception {
        String key= RedisConstant.APP_LOGIN_PREFIX+phone;
        //根据手机号去redis先获取是否存在
        Boolean haskey = redisTemplate.hasKey(key);
        if(haskey){
            //存在，未过期，不能发送
            throw new LeaseException(ResultCodeEnum.APP_SEND_SMS_TOO_OFTEN);
        }
        //不存在，生成一个六位验证码
        Random random=new Random();
        int code=100000+random.nextInt(900000);
        //将数字和手机号存到redis中
        SendSmsRequest smsRequest=new SendSmsRequest();
        smsRequest.setPhoneNumbers(phone);
        smsRequest.setSignName("阿里云短信测试");
        smsRequest.setTemplateCode("SMS_154950909");
        smsRequest.setTemplateParam("{\"code\":\"" + code + "\"}\n");
        client.sendSms(smsRequest);
        //发送短信
        redisTemplate.opsForValue().set(key,code,RedisConstant.APP_LOGIN_CODE_TTL_SEC, TimeUnit.SECONDS);
    }

    @Override
    public String customlogin(LoginVo loginVo) {
        //判断手机号和验证码是否为空
        if (!StringUtils.hasText(loginVo.getPhone())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_PHONE_EMPTY);
        }
        if (!StringUtils.hasText(loginVo.getCode())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EMPTY);
        }
        //判断验证码是否正确
        String key= RedisConstant.APP_LOGIN_PREFIX+loginVo.getPhone();
        String code= (String) redisTemplate.opsForValue().get(key);
        if (code==null){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_EXPIRED);
        }
        if (!code.equals(loginVo.getCode())){
            throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_ERROR);
        }
        //判断用户是否存在，不存在注册
        LambdaQueryWrapper<UserInfo> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(UserInfo::getPhone,loginVo.getPhone());
        UserInfo userInfo= userInfoService.getOne(queryWrapper);
        if (userInfo==null){
            userInfo=new UserInfo();
            userInfo.setPhone(loginVo.getPhone());
            userInfo.setStatus(BaseStatus.ENABLE);
            userInfo.setNickname("***"+loginVo.getPhone().substring(5));
            userInfoService.save(userInfo);
        }
        //判断用户是否可用
        if (userInfo.getStatus().equals(BaseStatus.DISABLE)){
            throw new LeaseException(ResultCodeEnum.APP_ACCOUNT_DISABLED_ERROR);
        }
        //返回token
        return JwtUtil.createToken(userInfo.getId(),userInfo.getPhone());
    }
}
